My way of installing oust fans in my humidor

[JE3146]

Shaun.. I ran through a few schematics last night. I may be able to assemble a timer circuit with battery pack holder and PC fan for under 10$. I'll keep you posted. I plan on tinkering with it over the weekend.

Just hope Radio Shack has some LM555 IC's to play with...


If I can get it working, I'll post a schematic and shopping/price list for those of you with a soldering iron at home

[Shaun Raney]

That'd be sweet!

[No1der]

If you really want to use the circuit board that comes with the oust to controll more than the fan that it comes with; What I would do is to connect the circuit board to a relay switch with a secondary, or rerouted, power source. This way you're not pushing too much current through that oust circutry.

Just a thought but I thought I'd share.

BTW, I really like what you've done there and it's very creative. Thanks for giving me some ideas.

Cheers,
Rob

[JE3146]

Originally Posted by No1der

If you really want to use the circuit board that comes with the oust to controll more than the fan that it comes with; What I would do is to connect the circuit board to a relay switch with a secondary, or rerouted, power source. This way you're not pushing too much current through that oust circutry.

Just a thought but I thought I'd share.

BTW, I really like what you've done there and it's very creative. Thanks for giving me some ideas.

Cheers,
Rob

You could use a resistor to control the current output and just have it trigger a simple NPN transistor to drop voltage from the collector to the emitter... Simple as pie, but it puts you back to square one requiring the oust circuitry.